all these changes

backend/node_modules/base64url/dist/pad-string.js

@@ -0,0 +1,20 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+function padString(input) {
+    var segmentLength = 4;
+    var stringLength = input.length;
+    var diff = stringLength % segmentLength;
+    if (!diff) {
+        return input;
+    }
+    var position = stringLength;
+    var padLength = segmentLength - diff;
+    var paddedStringLength = stringLength + padLength;
+    var buffer = Buffer.alloc(paddedStringLength);
+    buffer.write(input);
+    while (padLength--) {
+        buffer.write("=", position++);
+    }
+    return buffer.toString();
+}
+exports.default = padString;